2008 Ltz Nav Locking Up

[fastlimey]

I have a 08 2500HD LTZ Duramax , It has the factory touch screen Nav unit , About 30 mins of driving the nav screen will freez and will get stuck on the page it was last on , the only way to make it work again is to pull the radio fuse and reset it , any one wlse had this problem ?

[KCXLT]

I have an 08 1500 LTZ with Nav, and no, I haven't had any problems with the Nav unit. Does the disk have any scratches on it? I burned a copy of my disk and use that one all the time so the original stays in good shape.