FAT32 Partitions on GUID Partition Table External Drive Not Seen in Vista

I have an interesting predicament. I have repartitioned my external hard drive to have 5 partitions: 2 HFS+ and 3 FAT32. The external drive has a GUID Partition Table. The drive was formatted and partitioned using Disk Utility.
When I boot into Windows Vista using Boot Camp, Vista will ONLY mount the first Windows compatible partition. For example, if I have two partitions disk2s2 and disk2s3 (both FAT32), Vista only mounts disk2s2.
The described partition setup worked well with Master Boot Record, minus the bug with Time Machine choking every so often.
Any ideas on how I can get Vista to recognize these partitions?

Hi Karl87,
according to the german computer magazine c't there is a limitation/flaw in the Master Boot Record (MBR:
Only the first four partitions are shown in the MBR and since one of these entrys is taken by the needed hidden EFI-partition and the next two entrys are taken by the OSX partition, there is only one of your three FAT partitions shown.
This limitation to four partition entries is quite old.
See here for further informations: http://en.wikipedia.org/wiki/Masterbootrecord
To my knowledge there is no solution for this.
Regards
Stefan

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