I downloaded the student version of solidworks, but I'm having an issue when i extrude it. I start by doing a sketch do all the dimensions etc, once I go to extrude it i select my sketch and do the extrude, it does not show a solid just a shadow appears at the bottom, i can select like if it has face but there's no visible object I've messed with all the view options and nothing. Could it be a problem with my computer, cause the last time I had the student version was like in 2016 and the program worked flawlessly, but this time it just doesn't show anything wen I go to make it a solid.