It just comes up with a box that says Help, Close, Close Tag Group and doesn't help, but thanks.
Does this FAQ article address your issue?
CS4 Property inspector fields truncated (Windows)
This happens on Windows systems when the system fonts are set to display at 120 dpi. At the moment, the only solution is to reset the system fonts to the default 96 dpi.
You've clicked the black down arrow in the upper RHS of the Property Inspector (PI).
Nancy's referring to the white down arrow in the lower RHS of the Property Inspector which toggles a half height or full height PI.
Either way, it doesn't sound like it's the issue you're facing anyway. See my other reply below.