Speech recognition on netbook

hello. i have an asus eee pc 1008ha. recently i upgraded to windows 7 and i understand that the sound driver might not be the best, BUT. after allot of training and having installed windows speech macros, although when dictating it understands me quaite well, when i say commands like next or play on itunes nothing happens... it dosent understands them as commands at all. same happens with macros. even when i used the profile from my other pc (where everything works fine) the results where the same... any bit of advise??

yiap. they are recognized. even with deferent microphone than they are trained ofr (the one i use on the netbook) and even if i move that profile on the netbook, they are not recognized then.. generally the computer understands that i say other comands.... like when i say the "increase voloume by 20"  it presses the enter key....