Can a DVI Connector on TV use with PC ?

Hey all,
I have a Toshiba 34" TV that has a DVI input on it. I'd like to use it with
a PC that has a DVI, but the manual for the TV says it should not be
connected to a PC.

All I can think of is that the TV may not like the sync signals if the vid
card is set at the wrong resolution and refresh rates.

But why bother with the DVI if you can't do this ?

Any help appreciated.