Have a client's XP FR3 farm, some servers have SP3 installed, and some servers have SP4 plus the latest hotfix rollup. On the SP4 servers, when users try to open html files a Watson on the 6.31.q051 client occurs, showing an access violation of c0000005 for wfica32.exe at address 77e7a5cd. Anyone seen this before or can suggest possible causes of the access violation?