User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 After upgrading my system to a dual core Athlon 64 X2 processor Thunderbird fails to pull emails from my pop email account. If I limit the processes affinity to a single CPU everything works fine. Reproducible: Always Steps to Reproduce: 1. Get a dual core CPU (or perhaps multi CPU system) 2. Try to get POP email 3. Actual Results: Thunderbird replys with error dialog saying that POP server has timed out Expected Results: Receive new emails and no error message I did not format and reinstall my operating system after upgrading to a dual core cpu. All new system components were properly recognized.

DUP of Bug 315420? See Bug 307527 also. When Athlon 64 X2 & MS Win XP, "/usepmtimer in boot.ini" can be a solution. (Combination of "SP2 of MS Win XP" and "Hot-Fix after SP2" seems to be a similar solution as "/usepmtimer in boot.ini when SP1".)

*** This bug has been marked as a duplicate of 315420 ***