I am encountering a similar problem: I use an english Windows XP with Visual Studio 2008 and SQL Management Studio 2008. On this machine I cannot see any control characters like a tab (0x09) in the result grid. My co-worker sees those control characters as rectangles on his machine. The only obviously difference is, that he uses a german Windows XP.
Can anybody help?
Is there any setting I can change or do I have to use a german Windows XP to solve this issue?