http://www.nomad.ee/btrieve/errors/100.htm

Btrieve error 100 (out of cache buffers)

Btrieve has used all the cache buffers it allocated at load
time. Using the Setup utility, you can increase the value for
the Cache Allocation configuration option. Alternatively, you
can change the Number of remote Sessions configuration option
to decrease the number of concurrent Btrieve users. For more
information, refer to chapter 3, "Installing and Configuring
Btrieve" in your Btrieve Installation and Operation manual.


http://forums.peachtreeusers.com/showthread.php?t=1269

- stop your antivirus software to isolate the problem, of course if it's not the cause of your problem, better to restart it again

- apply the registry update provided by Peachtree, it solves most of the btrieve settings problems

- delete the sortjob.dat and restart your Peachtree, once you open the company, Peachtree will recreate the file for you again

http://www.qview.com/info/quickview/support/version4/faq0010.aspx