Hi, I just tried to install my I/O Shield into a 10 year old case (Dell XPS T450) and i couldnt fit my shield in! Now im sure this is the cases fault, as my shield is from a very recent MoBo and measures 48mm (width) by 161mm (length). Would this I/O Shield fit into a recent ATX case (e.g. this one: http://www.thermaltake.com/product/Chassis/midtower/mambo/vc2000bns.asp )?