External HD problems and Screen Sharing

Question

Ok so here is my problem i recently had a new Mac HDD installed. I had to reformat my External HD because for some reason it wouldn't take more than 75GB. One HD is 250 WD. And the other is a Isomega 650GB. As of now, I can't get the WD to read on a PC and the Isomega won't take more than 75 GB. I'm not sure what happened here. Is there a way i can reformat it to manufacture standards because it would work on both when I first bought it no formatting needed.
Also I'm trying to find a free Screen Sharing software that will let me screen share with my windows computer at home. Also one main spec. is file sharing with ease and without any limitations. Someone mentioned LogMeIn but it wasn't really what I was looking for. Also how do I go about using these software. I know that 10.5 comes with a sharing software but how do I use it, like do I need to type in my IP address for both computers ect. . The only way I know how to screen share is iChat.
Thanks for the Help
Message was edited by: Karim Vadsaria

Answer 1

Try the following on each of the drives:
Extended Hard Drive Preparation
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs) then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
Now, if the above is successful for each drive you can then change the format to MS-DOS which should make them both read and write on both platforms. You do not have to repartition the drives.