When connecting to a Windows Server 2008 Terminal, all fonts appear very small and almost unreadable. This is necessarily the case for all users.

1. Connect remotely with a user which doesn't have the problem
2. Start "regedit" and export the following registry key to a folder of your choice (Exemple: C:\temp\good_1.reg)

[HKEY_CURRENT_USER\Control Panel\Appearance\New Schemes\Current Settings SaveAll\Sizes\0]

3. Export the following key to a folder of your choice (Exemple: C:\temp\good_2.reg)

[HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics]

4. Connect remotely with the user which has the issue and to the exact same thing as part 2 and 3 and save the files as "bad_1.reg" et "bad_2.reg"
5. Use a program such as WinMerge to compare these files (good_1 with bad_1 and good_2 with bad_2)

This step is important 'cause it can confirm that this scenario could or not fix your problem

The differences in the first 2 files should be within the following registry key values : Font #0 à Font #5 (Example : hex:f7 au lieu de hex:f2)
The differences in the last 2 files should be within the following registry key values  : CaptionFont, IconFont, MenuFont, MessageFont, SmCaptionFont et StatusFont (Example : hex:f9 au lieu de hex:f5)

If other differences exist, be sure these will have no negative effect if applied to an other user.

6. If the differences in point 5 are met

Connect remotely using the problematic profile, apply registry files "good_1.reg" et "good_2.reg"
Close and open the user's session
Fonts should be back to normal