VisualFormat crash in msvbvm60.dll (TST5.5.2)

System

We are seeing very frequent crashing when using VisualFormat under the browser-based Templating on 5.5.2. We run are upgrading to TS 5.5.2 and TST 5.5.2. Anyone else seeing better results? I have a case open with Interwoven, but response seems slow to most VF issues, as info moves between Interwoven and Ektron....

Clients are typically on Windows 98 with IE 5.5/5.5sp2. I've also had it crash on Windows 2000 with IE 5.5sp2.

Typical DCTs include four text areas with Visual Formatter active. Visual Formatter version shows '2.5.0.15'. The crash occurs when closing or saving the DCT. Results thus far are inconsistent, but the crashes seem to occur more frequently the longer the templating client is used. In one instance a DCT was simply left open on screen for 30 minutes with not changes made, and when it was closed, IE crashed. Here is some typical output from the crash error report from IE 5.5:

Error Details: Internet Explorer has encountered an internal error.
Error Signature:
AppName: iexplore.exe AppVer: 5.51.4807.2300
ModName: msvbvm60.dll ModVer: 6.0.88/77
Offset: 0002b83c