I am running CX-P on Vista Business. I have a couple of problems - may or may not be CX-P.
1) Screen "flashing" - nearly blows your eyes out. May be a problem with the nVidia chip/driver but does not happen with any other programs. Dell Vostro, T9300, 4 gig RAM, nVidia chip, 17" WUXGA screen - absolurtely awesome - lots of ladder acroiss the screen at 1920 x 1200? I think.
2) When using the watch window, I select ULINT as it will look at 4 channels. Pull up binary and sometimes it works and sometimes not. Close it down and restart and it works. Use binary ULINT to check I/O of 64 bit cards mainly.