The best way to view the reunion slides (and the OHS68 website in general) is to set your monitor to a resolution of 800 x 600 pixels (or if you prefer, 832 x 624). This will make everything somewhat larger than a setting of 1024 x 768, and somewhat smaller than 640 x 480.
On a Windows machine, go to:
Start > Settings > Control Panels > Display > Settings > Screen Area
On a Mac, go to:
Control Panels > Monitors
If you decide to make a change, do not be alarmed if the monitor goes black for a split second -- that is normal (and note that you can always change it back to your original settings whenever you want).
If you want to read a bit more about monitor settings, here is a good
tutorial.