Today, I installed a new router (boss wanted a router with WiFi).  We have peer-to-peer network setup for EVO, with both WinXp and Win7 systems.  Now, none of the workstations will run EVO.  They all give the WBTRIEVEMEMO or data dictionary errors. (File not found, file can't be opened). The shared drives on the P-to-P server are accessible.  The only real difference I can see is the old router used IP addresses in the 192.168.1. range, while the new router uses 192.168.2. range.  I don't have any filtering turned on in the router.
I have tried reinstalling Pervasive 11 on my workstation.  I have tried reinstalling EVO on my workstation as well, but the installation fails.
EVO runs fine on the P-to-P server itself.
 
Any suggestions would be appreciated.
 
Update- now one Windows 7 workstation is magically working.  
 
Another update- Had IPV6 turned on my workstation's network adapter- Pervasive 11 didn't like it (new router is IPV6 capable, old one wasn't).  Not I have EVO back.