Hello tbbeta, Ok, I found the cause of the memory leak. I know, that there must be a leak, I felt it :) ...:
1. Check the mem. need of TB! in task manager. Lets say it is X MB. 2. Ctrl+N, new mail. And just close it, dont do anything. Repeat it, for example 10 times. 3. Check the mem. need of TB! in task manager. It will be ca. X+3 MB. So, more email you send, more RAM will be used up... I did not try it by sending, I guess, that would cause a leak, too. Please confirm it. PS.: No antivirus software, no plugin, WinXP Home SP1 :)), 512 MB RAM. TB! v3.51.4 -- Vili ________________________________________________________ Current beta is 3.51.4 | 'Using TBBETA' information: http://www.silverstones.com/thebat/TBUDLInfo.html IMPORTANT: To register as a Beta tester, use this link first - http://www.ritlabs.com/en/partners/testers/

