C Akey report problems with display of two transparent models and excessive memory use and crashes when saving images. ------------ Tom- Sorry to bother you but I am having serious problems with Chimera while trying to make figures for a paper. After you fixed the sessions number problem, so that they are retained in the same numbered slots from one session to the next, I found that my most recent sessions made with this version, would not work properly when I wanted two different displayed volumes to have transparencies different from 1. This worked in earlier versions and then I started over with a new session, imported everything and it is working again. Maddening. If you have a ribbon within a volume and try to vary the transparency, it almost disappears instead of having a gradual blending effect (see attached figures A,D panels). I am using a PC under XP with 1Gb mem and 512 GB graphics card. I have checked and memory is not the problem. {However, if you quit a session then open another session, Chimera does not give the memory back to the system, so your memory use soars, YOU MUST QUIT BEFORE OPENING A NEW SESSION.} Here is another killer bug: When you record an image full screen, about half the time you get a fatal error in pythonw.exe, it wants you to contact Microsoft and then Chimera crashes losing everything. The error from chimera reads "failed 1073741891" but there is no chance to report the bug. So after battling to get to the point of recording images, the program quits on me about half the time. By the way, when Chimera is shown full screen on our new Linux machine, it doesn't clearly show all the icons on the left hand side of the screen, they are partly occluded. sorry about the bugs but its starting to get to me. cheers C Akey