So here is my dilemma. Let me start off with what I already own and then I'll move on to my question. Computer: MacBook Pro Os X 10.5.3 (waiting til Pro Tools LE updates to 10.5.4 to update) 2.4 GHz Intel Core Duo 2 GB 66 MHz DDR2 SDRAM Macintosh HD Startup Disk Hardware: MBox2 Pro M Audio keystation 61 es Software: Pro Tools LE 7.4.3 Amplitube 2 Basically I'm trying to acquire some virtual instrument plug ins that could help at my house without having to have my actual drum kit, guitar rig, etc......... I downloaded Amplitube 2 but so far everytime I open it as a plug-in my virtual memory goes haywire and I am asked to increased the CPU limit or H/W buffer size even though I am at the max. I'm a newb when it comes to plug-ins so it could be that amplitube is notorious for eating memory on laptops and I just need to run another less memory hungry one. So far I know that I want to run some sort of Guitar FX/Cab simulator plug in, a drum machine, piano, and possibly some strings. I'm not sure if that's realistic considering all I have is my laptop. I have to admit I thought once I bought a mac laptop all my problems would be solved but it's proven to be a task in itself. I looked into optimizing the performance to utilize all my computers resources but I'm not 100% what that would involve me doing. Anyway, if anyone can offer any assistance or suggestions as to what I can do or what programs I can get I would appreciate it greatly. Thanks in advance!!!