I backed up the files, uninstalled Prime95, and reinstalled it in 2 separate folders. Now I think I've almost solved the problem.

A new problem has appeared though unfortunately. Instance 0 is incapable of contacting the server. I keep getting Error 2250: Server Unavailable, even though the server is online and the other instance has no trouble contacting the server.

primenet.ini ? Firewall ? Which user account ? Guest may not have the rights to get to Internet ?...

Jacob

I don't think it can be a firewall or the wrong user account. The other instance is running side-by-side with it and is able to communicate just fine.

Here is the local file:

OldCpuType=12
OldCpuSpeed=2493
CPUHours=10
DayMemory=1024
NightMemory=1024
DayStartTime=450
DayEndTime=1410
ComputerID=CECA33825
LastEndDatesSent=1218864918
RollingStartTime=1220797504
RollingAverage=737
Affinity=0
SelfTest2048Passed=1

Here is the prime.ini file:

Windows95Service=1
OldUserID=
OldUserPWD=
UserPWD=caltech
UserName=Jin Du
UserEmailAddr=*******(starred out)********
Newsletters=1
UserID=jinydu
AskedAboutMemory=1
UsePrimenet=1
DialUp=0
DaysOfWork=5
WorkPreference=0
Left=295
Top=100
Right=1255
Bottom=659
OutputIterations=1
ResultsFileIterations=999999999
DiskWriteTime=30
NetworkRetryTime=2
NetworkRetryTime2=60
DaysBetweenCheckins=1
TwoBackupFiles=1
SilentVictory=0
Advanced=1
ManualComm=0

[quote=jinydu;141288]I don't think it can be a firewall or the wrong user account. The other instance is running side-by-side with it and is able to communicate just fine.[/quote]
Are you sure that Windows Firewall isn't blocking access to the new copy of Prime95 since it's in an "unrecognized" location? (That is, maybe it had already been programmed to allow the old version access to the internet, but not the new one?)