Inventor Lock Ups

These are the system specifications for the computer that I’m running Inventor on:

*]AMD Phenom II X4 955 @ 4.0GHz
*]MSI 970a-G45 Mainboard
*]8GB G.SKILL “Sniper” RAM - DDR3 - 1600 MHz - 9-9-9-24
*]XFX Radeon HD 6850 - Core Clock: 900 MHz - Memory Clock: 1100 MHz
*]Windows 7 Ultimate 64 Bit Service Pack 1
*]240GB OCZ Agility 3 SATA III SSD (This is what Windows 7 and Inventor are installed to)

I realize that the computer is nothing special but I feel like it should definitely be enough to accomplish what I’ve been trying to do.

The Problem: Anytime I try to do any sort of manipulation in Inventor 2012 the program immediately locks up and does not respond. I have an IPT of a VEX C-Channel 1x5x1x35 and I’m attempting to move it on the Z axis. As soon as I attempt to move it the problem occurs. It also seems to happen when I try to select something by clicking and dragging.

I can’t seem to think of a reason why this would be happening. I’ve looked at the specs of a couple of other peoples computers using the same exact program and they have none of the problems listed. I’m able to run Photoshop, AutoCAD, etc. with no trouble at all.

Does anyone know of any problems with Inventor that I may be able to easily remedy? I’d like to be able to model a robot from my home computer as my team doesn’t meet all that often. (I’ve tried simple things like closing Explorer.exe and disabling Aero which seem to have little to no effect.)

Edit: Oh, and for what it’s worth this is “AutoDesk Inventor Professional 2012”.