Lovers of Belgian cuisine have another reason to rejoice other than Catherine Duwez's increasingly common Cafe Montrose dinners: Former co-owner Andrew Klarman is opening Jeannine's Bistro this week with his sister, Jeaninne Petras. The cafe will be located at Westheimer/Elgin and Bagby and will serve the standard Belgian fare -- moules et frites -- along with other Belgian and French dishes. The cafe will be open for lunch and dinner and while it currently has a very small seating area, they ho