ok i really need some help i have an acer computer and i seem to have lost my tool bar, i havnt done nothing as my mum has seem to have lost hers to,

the problem im having is to access my tool bar at the bottom of the screen i have to press the flag button on my key board to get my start button up, yesterday i missed loads of msn messages as they didnt show up at the bottom only noticed when i dropped my internet page down, also i like to keep checking that my security is still weorking but have to keep dropping my page down to see, as no tool bar, any one know how to get it back, please im stressed, lol thanks hope that made sense...

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