Another possible workaround is mentioned in MS KB 820780

This suggests that it may help to make the ERR_CACHE_ACCESS_DENIED message
larger than 1460 bytes. For high speed LAN users I suspect it needs to be
substantially larger, for dialup or other slow connections <10MBps just
above 1460 bytes should be sufficient.

Please note that the hotfixes mentioned appears to be included in the
latest IE security update (February 2).