32 bit CS4 on windows 7 64 bit

[keithrsmith]

Has anyone seen this problem?
on X86 CS4, running on Win 7 64 bit, the display is not updating correctly.  If I have a layer and turn it off , the display does not update unless I zoom in/out.

The layer icon goes to a checkerdoard if I paint on the layer.

The 64 bit CS4 works perfectly.

Latest Nvidia driver installed.

Keith

[Mark D Segal]

Has anyone seen this problem?
on X86 CS4, running on Win 7 64 bit, the display is not updating correctly.  If I have a layer and turn it off , the display does not update unless I zoom in/out.

The layer icon goes to a checkerdoard if I paint on the layer.

The 64 bit CS4 works perfectly.

Latest Nvidia driver installed.

Keith

I haven't seen this, because I don't own a 64-bit capable computer, but I have been thinking of buying one and I asked a knowledgeable colleague about the compatibility of 32-bit applications on a 64-bit machine. His reply was this:

<<Running some 32 bit applications on a 64 bit OS could actually be slower. The additional overheads in running 32 bit software in 64 bit mode could cause a slight degradation in performance. It will take some time for 64 bit software to become the norm.>>

So you may be seeing the speed hit, plus other issues (I don't know ther details of) running a program compiled for 32 bit in 64 bit architecture.

Moral of the story: hardware and software need to be made for eachother; if they aren't, sometimes one is lucky with piecemeal up-grades, other times the strategy needs to be more comprehensive (and I guess that means more expensive too!). I'm interested to hear what the computer-savvy in this crowd have to say about this issue, as it will be helpful to me in crafting my up-grade strategy going-forward.

[keithrsmith]

It would not be a problem except that most of the plugin's only work on the 32 bit version at the moment.  That was the only reason I went to use the 32 bit version having been running win 7 64 bit for a couple of weeks now

>eith

[Mark D Segal]

Keith, just to understand: when you say "it would not be a problem" - what you mean is that running PSCS4 64-bit version on Win 7 64 bit OS/hardware is fine - as one would expect, but only when you switch to the 32 bit version of PSCS4 to be able to use the plugins in your 64-bit O/S the problem arises? In this case, one can only conclude that the switch to 64 bit Windows may be a bit premature if one wants full functionality of the plugins - as I would. Is it possible in Windows 7 to revert to something like "virtual XP-32 bit". If so, that would likely solve the problem but probably take you back to the 3 GB RAM limitation.

[keithrsmith]

Keith, just to understand: when you say "it would not be a problem" - what you mean is that running PSCS4 64-bit version on Win 7 64 bit OS/hardware is fine - as one would expect, but only when you switch to the 32 bit version of PSCS4 to be able to use the plugins in your 64-bit O/S the problem arises? In this case, one can only conclude that the switch to 64 bit Windows may be a bit premature if one wants full functionality of the plugins - as I would. Is it possible in Windows 7 to revert to something like "virtual XP-32 bit". If so, that would likely solve the problem but probably take you back to the 3 GB RAM limitation.

Correct. 64 bit CS4 work fine on 64 bit Win 7.    I am fairly sure that I had 32 bit CS4 working fine at one point, but something has gone wrong - still checking

I am fairly sure it's a video driver issue.

Found it.

I had installed some NIK plugin's.  Deinstalling these fixed the problem.  These may have been old version, so I will try the latest.

Keith

[Farmer]

Win 7 x64 runs 32bit apps without any issues, including CS4.  If you're upgrading from a 32bit only processor to a 64bit capable processor, any theoretical slow-down in running 32bit apps in a 64bit OS are completely blown away by the enhanced performance of the processor and the OS itself in 64bit mode (no more 32bit memory fragmentation to start with...)