I have been using WinFX since May this year, and I am now using the latest beta. However, since the beginning, I found that it doesn't work with Eudora and MSN Messenger 7 quite well. In MSN Messenger 7 it's the shadow problem. The shaddow is lightly bigger than the window, hence, gaps between the window and its shadow. More trouble in Eudora. WinFX seems not working properly on my WinXP Professional. It only draws the shadow but not the window. This almost happening everytime. If I do not switch the semi-transparent option on for "system context menus", I have to restart Eudora a few times in order to get it to be drawn "by chance". Even I make Eudora as 100% visible in the per Application setting, the problem still comes back.
FYI. I am running WinXP Pro on IBM T40 with ATI Raedon 7500 w/32MB DDR. My system is a Centrino 1.4GHz with 1280MB (1GB + 256MB) main memory.
I wonder if the future versions of WinFX could solve my problem.