It's poddible that GMail not recognise K-Meleon browser as compatible browser to standard view.
Try to changed your user agent string to Firefox (for example);
Tools -> User Agent -> Firefox
After read here his comment I changed from one view to another
Lockheed, go to Help>about k-meleon and tell us your version as follows:
Mozilla/5.0 (Windows; U; Windows NT 5.0; es-ES; rv:1.8.1.14) Gecko/20080406 K-Meleon/1.1.5