She's lost 28 times in a grand slam.
2007 AO - l. to Clijsters
2007 Wimbledon - l. to S. Williams
2006 AO - l. to Sharapova
2006 FO - l. to Clijsters
2006 Wimbledon - l. to Henin
2006 USO - l. to S. Williams
2005 AO - l. to Dementieva (okay, at AO, that's kind of embarrassing
2005 FO - l. to Clijsters
2005 Wimbledon - l. to V. Williams
2005 USO - l. to V. Williams
2004 Wimbledon - l. to Sharapova
2003 AO - l. to V. Williams
2002 AO - l. to V. Williams
2002 FO - l. to Seles
2002 Wimbledon - l. to S. Williams
2002 USO - l. to S. Williams
2001 AO - l. to Kournikova (top 10 at the time)
2001 Wimbledon - l. to V. Williams
18/28 losses to those players. Yeah, losing to Tanasugarn, Shinobe, Harkleroad, Vakulenko, Medina-Garrigues, Dechy, Schnyder, Martinez, Molik, and one other I don't remember--not the best losses but not really THAT bad aside from her 2003 FO and Wimbledon collapses.
She usually ends up losing to the person she's supposed to at GSs more often than not. On the tour level events...okay I can't explain those
but everyone has bad days. 2007 is easily her second best season; I would figure her fans would be happy because of that. I know I am.