Hi Thomas,
Based on your description, this issue only occurred on one PC, right? The driver as you guessed might be the issue here in this case. As you are using SSAS, please check if SQL driver is in place follow steps below:
Start -> Control Panel -> Administrative Tools -> ODBC Data Sources(32-bit)(if you are using Office 32-bit version, otherwise choose 64-bit) -> Drivers, under this tab, check if SQL driver is available there. If it's not there, please download and install the driver from here .
It's 6.01.7601.1751. I guess that's Windows 7 Standard...
Thanks
Hi Thomas:
Do you mind sharing me a screen grab with the error/symptoms you saw? So I can get a better understanding of this issue.