To start with I hope that this is an appropriate sub-section of the forum for this kind of query.
Please see attached jpegs. We have 7 identical machines in our office, one of these machines has a strange quirk in that occasionally when trying to open a project in archicad the 'start archicad 15' dialogue box is completely blank (white). Things become visible again when you begin moving the mouse cursor over different areas of the dialogue box. The attached jpeg is actually taken after a bit of said mouse movement, so part of the dialogue box has returned.
We have tried to ensure that activeX is present and correct, as well as graphics drivers.
The spec of the machine in question is identical to that shown below in my signature.
Strangely, this isn't the first time we have seen this problem. Before our 7 new machines arrived we were occasionally using our server for rendering (it has lots of cores and ram, and was often sitting more or less idle apart from light bim server use). The server also presented this problem, but every time, not intermittently like the above pc.
Struggling to think what the issue is here? Particular as we have 6 other identical machines where we don't have a problem?
Any help appreciated.