apibiri

I have got my USB memory pen with the installing files, it seems it works fine. When I use it on my new laptop to install XP Pro on the second and third partition, the installing software cannot see the internal HDD at all. Acer Aspire One, 2GB RAM, 160GB HDD. HDD partitions: C 10GB: primary, SO well installed, XP home D 25GB: Primary, SO not installed E 17GB: Primary, SO not installed F 9GB: Logical G 87GB: Logical Boot with multi-SO. Boot.ini with Timeout 5 secs and 3 partions. Boot works fine when installing USB is not plugged in (it shows the 3 SO and run the first one with XP home) When I start up with the installing USB (setting the BIOS with the USB as first booting device), selecting the first stage of WinSetupFromUSB installation, all works as it is supposed to do (like the installation from CD), until the point that the software should let the user choose the partition where to install the SO. The software does not detect the internal HDD. I get following messages: " Setup has recognized the following storage devices in your computer <none> " I press Enter, then F8 and I get as list of existing partitions only my USB memory device (2GB) labeled with unit U (!!!) I hope somebody can sort out this problem...