We have a problem with our thin clients showing black blocks all over their TS displays. It seems to happen at random. We have two Win 2003 TS servers, both the same, both causing users problems. Not all users are affected, just some.
These blocks tend to appear suddenly and then affect various parts of the screen.
I thought at first that the settings on their connection icons may be set to the wrong number of colours, and indeed the servers RDC settings were set to limit colours to 15bit. However removing this limit didnt help, and all the icons are set to use high colour.
This has just started recently, so I'm worried that it may be the start of a fault on the server.
Any ideas what may be causing it ?