Cannot add attachments to contact SOLVED!

[bobmac1547]

Turns out that the READ-ONLY box was checked. I certainly did not do it deliberately, and there's no reason for me to have it on the display.
Is there a way to remove this checkbox?????

The Add attachments button/link is disabled.

EPIM Attachments disabled.png (5.79 KiB) Viewed 18974 times

Not only that, but all the field labels (the ones with a drop-down arrow) are also disabled.

EPIM fields disabled.png (3.41 KiB) Viewed 18967 times

After checking several other contacts, it appears that it's only an issue with this one contact.
What's causing this?

How can I enable these?????