We are seeing a very odd effect in some of our WSS sites and in some parts of SPS portal.

Some users experiences have changed seemingly overnight. We are starting to get reports from a handful of users that the left hand navigation bar within Portal areas is now twice as wide as before. On some (not all) of the clients with this problem there is a second problem with the "modify shared page" text not giving a popup menu when clicked.

We think that this is either

A) Combination of OS/Browser build in conjunction with patch/SP status

And/or combined with

B) something to do with CSS corruption


We are really at a loss as to how this is happening as we think b) is out….a new portal on same server using default CSS presents the same problem.

Anyone got any ideas where to start…...